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Neutrino oscillations are a widely observed and well established phenomenon.It is also well known that deviations with respect to flavor conversionprobabilities in vacuum arise due to neutrino interactions with matter. In thiswork, we analyze the impact of new interactions between neutrinos and the darkmatter present in the Milky Way on the neutrino oscillation pattern. The darkmatter-neutrino interaction is modeled by using an effective couplingproportional to the Fermi constant $G_F$ with no further restrictions on itsflavor structure. For the galactic dark matter profile we consider anhomogeneous distribution as well as several density profiles, estimating in allcases the size of the interaction required to get an observable effect atdifferent neutrino energies. Our discussion is mainly focused in the PeVneutrino energy range, to be explored in observatories like IceCube and KM3NeT.The obtained results may be interpreted in terms of a light$\mathcal{O}$(sub-eV--keV) or WIMP-like dark matter particle or as a newinteraction with a mediator of $\mathcal{O}$(sub-eV--keV) mass.

Neutrino propagation in the galactic dark matter halo